0.1.9.3:xwinreg-layout:0.1.0.1: redirect output to $file with exec
0.1.9.4:xwinreg-layout:0.1.0.2: correction: redirect output to $file with exec
0.1.9.5: printf instead echo
0.1.9.6: printf instead echo
0.1.9.6:TODO: update
0.1.9.6:TODO: update